Washington earthquakes

M2.1 earthquake 10 km NE of Ashford, Washington

A magnitude 2.1 earthquake struck 10 km NE of Ashford, Washington on Mon, Dec 31, 1973, 3:44 PM PST (23:44 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M2.3 29 km E of Packwood, Washington. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.1 (md), micro
Local time
UTC
1973-12-31 23:44:42 UTC
Depth
10.8 km (6.7 mi), shallow
Epicenter
46.836° N, 121.946° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 43.2 km horizontally, 55.3 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
236°, poorly surrounded by stations
Stations used
5

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 21 in the 30 days before it.

After

  1. 1.72 km NW of Lakeland South, Washington · 19257 days ago · 16 km deep · 58 km away
  2. 2.05 km NE of Belfair, Washington · 19252 days ago · 16 km deep · 95 km away
  3. 1.97 km ENE of Fall City, Washington · 19251 days ago · 6 km deep · 86 km away
  4. 1.78 km ENE of Tanner, Washington · 19249 days ago · 10 km deep · 77 km away
  5. 1.811 km WNW of Snoqualmie Pass, Washington · 19247 days ago · 0 km deep · 71 km away
  6. 1.91 km W of La Grande, Washington · 19233 days ago · 5 km deep · 30 km away
  7. 1.72 km E of Seattle, Washington · 19224 days ago · 4 km deep · 90 km away
  8. 1.84 km SSE of Seattle, Washington · 19224 days ago · 8 km deep · 86 km away
  9. 2.329 km E of Packwood, Washington · 19218 days ago · 6 km deep · 58 km away
  10. 2.13 km N of Bryn Mawr-Skyway, Washington · 19217 days ago · 6 km deep · 80 km away
  11. 1.83 km S of Mercer Island, Washington · 19217 days ago · 11 km deep · 81 km away

Before

  1. 1.73 km SW of Seattle, Washington · 19263 days ago · 1 km deep · 89 km away
  2. 1.90 km NW of Seattle, Washington · 19263 days ago · -1 km deep · 91 km away
  3. 1.83 km WSW of Seattle, Washington · 19264 days ago · -1 km deep · 90 km away
  4. 2.40 km NE of Mercer Island, Washington · 19264 days ago · 20 km deep · 85 km away
  5. 2.31 km NNW of Lake Marcel-Stillwater, Washington · 19264 days ago · 23 km deep · 97 km away
  6. 1.515 km E of Lake Marcel-Stillwater, Washington · 19266 days ago · 15 km deep · 97 km away
  7. 2.518 km E of Packwood, Washington · 19268 days ago · 3 km deep · 47 km away
  8. 1.70 km SW of Seattle, Washington · 19273 days ago · -1 km deep · 90 km away
  9. 1.63 km SW of Seattle, Washington · 19274 days ago · 1 km deep · 90 km away
  10. 1.65 km SW of Seattle, Washington · 19275 days ago · 1 km deep · 88 km away
  11. 2.00 km N of Seattle, Washington · 19275 days ago · -1 km deep · 91 km away
  12. 2.90 km E of Seattle, Washington · 19275 days ago · 2 km deep · 90 km away
  13. 2.00 km S of Seattle, Washington · 19275 days ago · 0 km deep · 90 km away
  14. 1.618 km SSW of Nile, Washington · 19277 days ago · 23 km deep · 69 km away
  15. 2.812 km NE of Ashford, Washington · 19279 days ago · 8 km deep · 2 km away
  16. 1.839 km SSE of Morton, Washington · 19279 days ago · 10 km deep · 71 km away
  17. 1.81 km ENE of Parkwood, Washington · 19280 days ago · 25 km deep · 92 km away
  18. 1.92 km E of City of Sammamish, Washington · 19282 days ago · 8 km deep · 86 km away
  19. 1.85 km SSE of Mossyrock, Washington · 19283 days ago · 8 km deep · 55 km away
  20. 2.415 km NE of Ashford, Washington · 19285 days ago · 4 km deep · 5 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10858058. Read Tue, Sep 22, 2026, 8:44 PM UTC.